1 /*
2 * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
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15 * You should have received a copy of the GNU General Public License version
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
23
24 /**
25 * @test
26 * @bug 4413109 4418221 6607198 8147448
27 * @run main BitDepth
28 * @summary Checks that ImageIO writers for standard formats can handle
29 * various BufferedImage RGB types. An optional list of arguments
30 * may be used to test the writers for a different list of formats.
31 */
32
33 import java.awt.Color;
34 import java.awt.Graphics2D;
35 import java.awt.image.BufferedImage;
36 import java.io.File;
37 import java.io.IOException;
38 import javax.imageio.ImageIO;
39
40 public class BitDepth {
41
42 public static void main(String[] args) throws IOException {
43 new BitDepth(args);
44 }
45
46 // Check that the PNG writer can write an all-white image correctly
47 private static boolean testPNGByteBinary() throws IOException {
48 int width = 10;
49 int height = 10;
50
51 File f = new File("BlackStripe.png");
52 BufferedImage bi = new BufferedImage(width, height,
53 BufferedImage.TYPE_BYTE_BINARY);
54 Graphics2D g = bi.createGraphics();
55 g.setColor(new Color(255, 255, 255));
56 g.fillRect(0, 0, width, height);
57
58 ImageIO.write(bi, "png", f);
59 BufferedImage bi2 = ImageIO.read(f);
60 if (bi2.getWidth() != width || bi2.getHeight() != height) {
61 System.out.println("Dimensions changed!");
62 return false;
63 }
64
65 for (int y = 0; y < height; y++) {
66 for (int x = 0; x < width; x++) {
67 int rgb = bi2.getRGB(x, y);
68 if (rgb != 0xffffffff) {
69 System.out.println("Found a non-white pixel!");
70 return false;
71 }
72 }
73 }
74
75 f.delete();
76 return true;
77 }
78
79 private static final int[] biRGBTypes = {
80 BufferedImage.TYPE_INT_RGB,
81 BufferedImage.TYPE_INT_BGR,
82 BufferedImage.TYPE_3BYTE_BGR,
83 BufferedImage.TYPE_USHORT_565_RGB,
84 BufferedImage.TYPE_USHORT_555_RGB,
85 BufferedImage.TYPE_INT_ARGB,
86 BufferedImage.TYPE_INT_ARGB_PRE,
87 BufferedImage.TYPE_4BYTE_ABGR,
88 BufferedImage.TYPE_4BYTE_ABGR_PRE
89 };
90
91 //private static final int[] biGrayTypes = {
92 // BufferedImage.TYPE_BYTE_GRAY,
93 // BufferedImage.TYPE_USHORT_GRAY,
94 // BufferedImage.TYPE_BYTE_BINARY
95 //};
96
97
98 private static final String[] biTypeNames = {
99 "CUSTOM",
100 "INT_RGB",
101 "INT_ARGB",
102 "INT_ARGB_PRE",
103 "INT_BGR",
104 "3BYTE_BGR",
105 "4BYTE_ABGR",
106 "4BYTE_ABGR_PRE",
107 "USHORT_565_RGB",
108 "USHORT_555_RGB",
109 "BYTE_GRAY",
110 "USHORT_GRAY",
111 "BYTE_BINARY",
112 "BYTE_INDEXED"
113 };
114
115 private int width = 80;
116 private int height = 80;
117 private String[] format = { "png", "jpeg", "tif", "bmp", "gif" };
118
119 public BitDepth(String[] args) throws IOException {
120 if (args.length > 0) {
121 format = args;
122 }
123
124 for (int i = 0; i < format.length; i++) {
125 testFormat(format[i]);
126 }
127 }
128
129 private void testFormat(String format) throws IOException {
130
131 boolean allOK = true;
132
133 for (int i = 0; i < biRGBTypes.length; i++) {
134
135 int type = biRGBTypes[i];
136
137
138 // TODO: remove the following 'if' block after the 8147448 fix
139 if ( format.toLowerCase().equals("bmp") && (
140 (type == BufferedImage.TYPE_INT_ARGB ) ||
141 (type == BufferedImage.TYPE_INT_ARGB_PRE ) ||
142 (type == BufferedImage.TYPE_4BYTE_ABGR ) ||
143 (type == BufferedImage.TYPE_4BYTE_ABGR_PRE ))) {
144
145 System.err.println("cannot use " + biTypeNames[type] +
146 " for bmp because of JDK-8147448.\t" +
147 " please update the test after fix of this bug!");
148 continue;
149 }
150
151
152 System.out.println("Testing " + format +
153 " writer for type " + biTypeNames[type]);
154 File f = testWriteRGB(format, type);
155 boolean ok = testReadRGB(f);
156 if (ok) {
157 f.delete();
158 }
159 allOK = allOK && ok;
160 }
161
162
163
164 if (format.equals("png")) {
165 System.out.println("Testing png writer for black stripe");
166 boolean ok = testPNGByteBinary();
167 allOK = allOK && ok;
168 }
169
170 if (!allOK) {
171 throw new RuntimeException("Test failed");
172 }
173 }
174
175 private File testWriteRGB(String format, int type) throws IOException {
176
177 BufferedImage bi = new BufferedImage(width, height, type);
178 Graphics2D g = bi.createGraphics();
179
180 Color white = new Color(255, 255, 255);
181 Color red = new Color(255, 0, 0);
182 Color green = new Color(0, 255, 0);
183 Color blue = new Color(0, 0, 255);
184
185 g.setColor(white);
186 g.fillRect(0, 0, width, height);
187 g.setColor(red);
188 g.fillRect(10, 10, 20, 20);
189 g.setColor(green);
190 g.fillRect(30, 30, 20, 20);
191 g.setColor(blue);
192 g.fillRect(50, 50, 20, 20);
193
194 File file = new File("BitDepth_" + biTypeNames[type] + "." + format);
195 try {
196 ImageIO.write(bi, format, file);
197 } catch (RuntimeException re) {
198 System.out.println("Can't write a type "
199 + biTypeNames[type] +
200 " BufferedImage!");
201 }
202
203 return file;
204 }
205
206 private int colorDistance(int color, int r, int g, int b) {
207 int r0 = ((color >> 16) & 0xff) - r;
208 int g0 = ((color >> 8) & 0xff) - g;
209 int b0 = (color & 0xff) - b;
210 return r0*r0 + g0*g0 + b0*b0;
211 }
212
213 private boolean testReadRGB(File file) throws IOException {
214 int[] rgb = new int[3];
215
216 BufferedImage bi = ImageIO.read(file);
217 if (bi == null) {
218 System.out.println("Couldn't read image!");
219 return false;
220 }
221 int r = bi.getRGB(15, 15);
222 if (colorDistance(r, 255, 0, 0) > 20) {
223 System.out.println("Red was distorted!");
224 return false;
225 }
226 int g = bi.getRGB(35, 35);
227 if (colorDistance(g, 0, 255, 0) > 20) {
228 System.out.println("Green was distorted!");
229 return false;
230 }
231 int b = bi.getRGB(55, 55);
232 if (colorDistance(b, 0, 0, 255) > 20) {
233 System.out.println("Blue was distorted!");
234 return false;
235 }
236 int w = bi.getRGB(55, 15);
237 if (colorDistance(w, 255, 255, 255) > 20) {
238 System.out.println("White was distorted!");
239 return false;
240 }
241
242 return true;
243 }
244 }